25107351461 has 2 divisors, whose sum is σ = 25107351462. Its totient is φ = 25107351460.

The previous prime is 25107351439. The next prime is 25107351473. The reversal of 25107351461 is 16415370152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23933946436 + 1173405025 = 154706^2 + 34255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25107351461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25107351481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12553675730 + 12553675731.

It is an arithmetic number, because the mean of its divisors is an integer number (12553675731).

Almost surely, 2^25107351461 is an apocalyptic number.

It is an amenable number.

25107351461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25107351461 is an equidigital number, since it uses as much as digits as its factorization.

25107351461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 25107351461 in words is "twenty-five billion, one hundred seven million, three hundred fifty-one thousand, four hundred sixty-one".